EP 0068027 B1 19890628 - SHAPE CORRECTING SYSTEM FOR WIRE CUT ELECTRIC DISCHARGE MACHINING
Title (en)
SHAPE CORRECTING SYSTEM FOR WIRE CUT ELECTRIC DISCHARGE MACHINING
Publication
Application
Priority
JP 18674380 A 19801230
Abstract (en)
[origin: US4499359A] PCT No. PCT/JP81/00403 Sec. 371 Date Aug. 26, 1982 Sec. 102(e) Date Aug. 26, 1982 PCT Filed Dec. 23, 1981 PCT Pub. No. WO82/02354 PCT Pub. Date Jul. 22, 1982.The flexure value of a wire electrode in a machining tangential direction and the flexure value in a radial direction are obtained by a computerized numerical control device using the wire electrode speed of an electric discharge machine, the width of a machined groove and the flexure value during straight machining. The corrected position of the wire electrode is calculated using the above two flexure values. Distributed pulses are provided by pulse distributors on the basis of the calculated movement values relative to a current position, and servo motors in the electric discharge machine are driven by the distributed pulses fed through moving direction controllers, thereby to perform shape compensation in wire-cut electric discharge machining.
IPC 1-7
IPC 8 full level
B23H 7/06 (2006.01); G05B 19/416 (2006.01)
CPC (source: EP US)
B23H 7/065 (2013.01 - EP US); G05B 19/4163 (2013.01 - EP US)
Citation (examination)
- JP S5143296 A 19760413 - SEIBU DENKI KOGYO KK
- JP S5499294 A 19790804 - MITSUBISHI ELECTRIC CORP
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
US 4499359 A 19850212; DE 3177074 D1 19890803; EP 0068027 A1 19830105; EP 0068027 A4 19851211; EP 0068027 B1 19890628; JP H0144451 B2 19890927; JP S57114331 A 19820716; WO 8202354 A1 19820722
DOCDB simple family (application)
US 41436182 A 19820826; DE 3177074 T 19811223; EP 82900135 A 19811223; JP 18674380 A 19801230; JP 8100403 W 19811223